This circuit for UHF between 800 and 1 000 MHz was found in an American documentation from the 90's. The integrated circuit is from that time, uncommon today.
We found this circuit in a 1967 Electronic Design. The circuit used a MOSFET of the time, which is...
This circuit uses an audio output transformer found in old transistor radios. Power output is...
This sensor circuit for a small robot was found in a Popular Electronics from the 90s. The circuit...